Gregory Mcdonald: Flynn's in (USA 2004)

From the Publisher:
When it comes to crime, Boston Police Inspector and part-time intelligence agent, Francis Xavier Flynn is no stranger to the bizarre, the perverse, or the ridiculous. But when he is suddenly summoned by Police Commissioner ' to a secret wilderness compound far outside of their jurisdiction, he is a little surprised to find himself the hostage of a secret club of the nation’s most powerful and peculiar. Famous for his irreverent methods and razor sharp intellect, Flynn is forced to conduct a clandestine murder investigation. But before one murder is even solved, membership at the Rod and Gun Club continues to drop.

Gregory Mcdonald: Flynn's in. Vintage Books, ISBN: 0375713611 (March, 2004), 201 p., $12.00.